<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>v-if,v-show,v-for指令</title>
    <script src="./vue.js"></script>
</head>
<body>
<div  id="root">
    <div  v-show>Hello Word</div>
    <button>toggle</button>
</div>
</body>
<script>
    new Vue({
        el:"root",
        data:{
        //
        }
    })
</script>
</html>